$(document).ready(function(){
	$(".hidden_detail_title").on("click", function(event){
		var $el = $(this).parent(),
			$head = $el.children(".hidden_detail_title"),
			$body = $el.children(".hidden_detail_block");
		
		if($el.hasClass("open")){
			$el.removeClass("open");
			$body.hide("fast");
		}else{
			if($body.hasClass("accordion")){
				$(".accordion:visible").hide("fast").parent().removeClass("open");
			}
			$el.addClass("open");
			$body.show("fast");
		}
	})
});